Isolated power supply is a main requirement in every industrial application where modules are connected to Programmable Logic Controllers (PLCs). Often, for those PLC modules, there is only limited space available, making the inclusion of large isolation transformers more difficult. TIDA-00688 provides isolated ±15-V and 5-V outputs in a very thin form factor with only 2.2-mm height on each side of the printed circuit board (PCB). This is achieved by integrating the transformer directly into the PCB. Furthermore, this reference design can be operated off a wide input voltage range of 14 V to 36 V and is all included in a small 25.4-mm * 43.8-mm form factor.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Reference design overview and verified performance test data
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Design guide | 1-W Isolated Power Supply With Planar Transformer Design Guide | Jan. 21, 2016 | |
| Product overview | Isolated Power Topologies for PLC I/O Modules and Other Low-Power Applications | PDF | HTML | Nov. 09, 2022 | |
| Application note | AN-2292 Designing an Isolated Buck (Fly-Buck) Converter (Rev. C) | Dec. 17, 2014 |
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